It is normal to have some sensitivity after a filling. The bigger or deeper the filling, the longer the duration of the sensitivity may be. Your tooth needs time to adjust and heal after the filling. If the filling is too high, this will cause sensitivity each time you put your teeth together. Your dentist can make an assessment and reduce the filling if it's high. If there is spontaneous pain or facial swelling, then you need to see the dentist ASAP. This may be a sign that the tooth is abscessing and will need a root canal or an extraction.

Duc Nguyen